. "0.116"^^ . "Glaciofluvial sheet deposits, Devensian"@en . . "GFSDD"@en . "Gravel and sand. Superficial deposits. Occurs onshore. Formed during the Devensian Stage (Quaternary Period) (.116-.0118 Ma BP)."@en . . "stable"@en . . . . . . . "Glaciofluvial sheet deposits, Devensian"@en . . . . "0.0118"^^ . . "See GFSD Glaciofluvial sheet deposits. Sand and gravel."@en . .